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发布者:来自网络 发布时间:2015-5-21 阅读:2298次    关键字: 音频功放
AD62553-USB Audio Controller


AD62553-USB Audio Controller & Line-in Interface With Class-D Power Amplifier and Headphone Driver DataSheet

Description
    AD62553 is a highly integrated USB single
chip for Stereo/Mono speaker or headphone.
Many useful features are programmable with
pins or I2C control. When using the power
supplied from the USB port (USB 3.0), AD62553
can drive a pair of up to 2.1W into 4ohm
speakers due to the built-in, high efficiency and
high performance class-D amplifiers. The device
also has an I2S input port and I2S output port
interface. The I2S input port allows other external
audio sources to use the class-D amplifier to
share the speakers. The I2S output port allows
other high performance or high output power
audio device requirement (i.e.
AD82586/AD83586/AD82587).

Features
􀁺 Compliant with USB Specification v1.1, and
USB 2.0 full speed
􀁺 Compliant with USB 3.0 super speed operation
􀁺 Embedded high efficiency, high performance
class-D stereo amplifier
􀁺 Embedded headphone driver
􀁺 Loudspeaker PSNR & DR (A-weighting, I2S
input)
88dB (PSNR), 91dB (DR) with bead
filter@8ohm
􀁺 Headphone PSNR & DR (A-weighting, I2S
input)
91dB (PSNR), 91dB (DR) with @32ohm
􀁺 Embedded stereo ADC with microphone boost
􀁺 Embedded Power-On-Reset circuit
􀁺 Support I2S input (master and slave mode) and
I2S output interface (master mode)
􀁺 +6dB gain enhancement (Theater function)
􀁺 Support sampling frequency 44.1/48KHz for
playback and recording
􀁺 Pin to set recording source from internal ADC
or external ADC
􀁺 Pin to set speaker or headphone mode
􀁺 Support microphone and line-in function
switching
􀁺 Support volume/mute control with external
button
􀁺 LED indicator function for playback, mute and
recording mute
􀁺 Support 3D surround sound
􀁺 Support microphone bias
􀁺 Support digital microphone interface for
recording
􀁺 Power Clipping function for speaker protection
􀁺 External EEPROM interface for vendor specific
and hardware configuration via I2C
􀁺 I2S input port allows AD62553 to receive
ESMT’s high performance ADC (i.e. AD12250)
􀁺 I2S output port allows AD62553 to control
ESMT’s high performance audio devices (i.e.
AD82586/AD83586/AD82581)
􀁺 PWM output port to drive ESMT’s high
performance PWM class-D audio device (i.e.
AD9258)􀁺 Loudspeaker output power with external power
2.1W x2CH into 4Ω@10% THD+N
1.4W x2CH into 8Ω@10% THD+N
􀁺 Efficiency with bead filter
75% for 8Ω load @ Po = 1.4W x 2CH
70% for 4Ω load @ Po = 2.1W x 2CH
􀁺 Built-in 5V to 3.3V regulator for internal device
operation
􀁺 Anti-pop design
􀁺 Over-temperature protection
􀁺 Under-voltage shutdown
􀁺 Short-circuit detection
􀁺 Single 12 MHz crystal input
􀁺 3.3V operation with 5V tolerate I/O
􀁺 Supports Windows Me/2000/XP/Vista/7, Linux
and Mac OS
􀁺 Integration circuit quality meet Win7 and Win8
Hardware Logo requirement
􀁺 64-pin LQFP (7mmx7mm) package

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